UDC: 629.3.083.4
https://doi.org/10.25198/2077-7175-2024-5-82
EDN: VSPGJO


viewing

METHODOLOGY FOR CONTROLLING THE AIR PARAMETERS OF PAINT-DRYING CHAMBERS WHEN WORKING WITH AUTOMOTIVE WATER-BASED PAINTS

R. S. Faskiev1, A. N. Melnikov2, E. G. Keyan3
Orenburg State University, Orenburg, Russia
1e-mail: f_rif_s@mail.ru
2e-mail: mlnikov@rambler.ru
3e-mail: keyan@mail.ru

Abstract. One of the significant ways to reduce the destructive impact on the environment from the technological processes of restorative repair of car bodies is the transition to paints diluted with water. However, the direct use of existing paint drying chambers for the application and drying of waterborne paints can negatively affect the performance of the process and the quality of the coating. It has been established that during the drying of coatings from waterborne paints, the formation of stagnant ventilation zones is possible, which can lead to reverse condensation of water, followed by the formation of streaks.

The purpose of the study: to increase the efficiency of the process of painting automobile bodies with paints diluted with water, based on the control of the parameters of the air environment of the paint drying chambers.

Research methods: analysis of ventilation processes in existing paint-drying chambers and their compliance with the thermophysical and volatile properties of water vapor when painting automotive products.

In order to avoid the formation of stagnant zones of high humidity in the ceiling part of the paint and drying chambers, it is proposed to mount a system of guide plates, the purpose of which is to control the directions and speed of air flows in the painting and drying modes. To ensure acceptable technological and economic parameters of the process of painting with waterborne paints, depending on the humidity levels in the environment and in the working chamber of the paint and drying chambers, it is proposed to change the logic of the recirculation flap control. Dependencies linking the parameters of the movement of the executive bodies with the indicators of humidity, mode and direction of the flow of ventilated air are proposed.

The scientific novelty of the work lies in the methodology for controlling the humidity level, direction and mode of air flows in the working chamber of the paint and drying chambers, which eliminates the appearance of stagnant zones when painting car bodies with waterborne paints.

The direction of further research is to substantiate the optimal level of air humidity in the working chamber, depending on the state of the ambient air and the productivity of the painting process.

Key words: car painting, paint and drying chamber, waterborne paints, control methods, air velocity, air humidity.

Cite as: Faskiev, R. S., Melnikov, A. N., Keyan, E. G. (2024) [Methodology for controlling the air parameters of paint-drying chambers when working with automotive water-based paints]. Intellekt. Innovacii. Investicii [Intellect. Innovations. Investments]. Vol. 5, pp. 82–92. – https://doi.org/10.25198/2077-7175-2024-5-82.


References

  1. Bogomolov, B. B., et al. (2021) [Algorithmization of the design calculation of convective radiation drying of paint coatings]. Teoreticheskie osnovy himicheskoj tekhnologii [Theoretical Foundations of Chemical Technology]. Vol. 55, No. 1, pp. 76–86. – https://doi.org/10.31857/S0040357121010036. – EDN: RUTKSS. (In Russ.).
  2. Bakaeva, N. V. (2009) [Environmental risks in car maintenance]. Mir transporta [World of transport]. Vol. 7, No. 3(27), pp. 134–139. – EDN: LAFXFP. (In Russ.).
  3. Bondarenko, E. V, Faskiev, R. S., Fazullin, M. R. (2009) [Reducing the energy consumption of equipment for car repair painting and drying]. Vestnik IrGTU [Bulletin of the Irkutsk State Technical University]. Vol. 4, pp. 74–78. (In Russ.).
  4. Ziganshin, A. M., Saphiullin, R. G., Posokhin, V. N. (2016) [About ventilation of painting bake ovens. Message 1]. Izvestiya vuzov. Investitsii. Stroitel’stvo. Nedvizhimost’ [Proceedings of Universities. Investments. Construction. Real estate]. No. 4 (19), pp. 84–93. – https://doi.org/10.21285/2227-2917-2016-4-94-100. (In Russ.).
  5. Ziganshin, A. M., Saphiullin, R. G., Posokhin, V. N. (2016) [About ventilation of painting bake ovens. Message 2]. Izvestiya vuzov. Investitsii. Stroitel’stvo. Nedvizhimost’ [Proceedings of Universities. Investments. Construction. Real estate]. No. 4 (19), pp. 94–100. – https://doi.org/10.21285/2227-2917-2016-4-94-100. (In Russ.).
  6. Krechetov, I. V. (1980) Sushka drevesiny. [Drying of wood]. Forestry industry, Moscow, 432 p.
  7. Fedoseev, V. A., et al. (2022). [Improving the quality of car body painting]. Sbornik statej XVI Mezhdunarodnoj nauchno-prakticheskoj konferencii. Perspektivnye napravleniya razvitiya avtotransportnogo kompleksa [Promising directions for the development of the motor transport complex: Collection of articles from the XVI International Scientific and Practical Conference]. Penza, Russia, November 14–15, pp. 160–164. – EDN: JTIOCR. (In Russ.).
  8. Katargin, V. N., et al. (2018) [Attracting and retaining customers in the field of passenger car body repair services]. Transport. Transportnye sooruzheniya. Ekologiya [Transport. Transport structures. Ecology]. Vol. 2, pp. 38–45. – https://doi.org/10.15593/24111678/2018.02.04. – EDN: XSHXED. (In Russ.).
  9. Semenov, B. A., Ozerov, N. A. (2014) [Local heat and mass transfer in the center of impact of a flat air jet spreading over a flat surface]. Vestnik Saratovskogo gosudarstvennogo tekhnicheskogo universiteta [Bulletin of the Saratov State Technical University]. Vol. 2(75), pp. 148–156. – EDN: SZWCHF. (In Russ.).
  10. Semykina, A. S., Nazhiganov, N. A., Zagoronij, N. A. (2019) [Analysis of the technological process of factory and repair painting of car bodies]. Vestnik Doneckoj akademii avtomobil’nogo transporta [Bulletin of the Donetsk Academy of Automobile Transport]. Vol. 3, pp. 80–86. – EDN: TPQBPS. (In Russ.).
  11. Terekhov, V. I., Kalinina, S. V., Sharov, K. A. (2018) [Convective heat transfer when an annular jet flows onto a flat barrier]. Teplofizika vysokih temperature [High Temperature Thermophysics]. Vol. 56, No. 4, pp. 229–234. – https://doi.org/10.7868/S0040364418020096. – EDN: XNZEAX. (In Russ.).
  12. Hasanov, I. H., Rassoha, V. I. (2019) [On the issue of improving the quality of the paintwork of the repaired passenger car body]. Innovatsionnyye tekhnologii mashinostroyeniya v transportnom komplekse: Materialy XI Mezhdunarodnoy nauchno-tekhnicheskoy konferentsii assotsiatsii tekhnologov-mashinostroiteley, Kaliningrad, 10–13 sentyabrya [Innovative technologies of mechanical engineering in the transport complex: Proceedings of the XI International Scientific and Technical Conference of the Association of Mechanical Engineers, Kaliningrad, September 10–13], Kaliningrad: Immanuel Kant Baltic Federal University, pp. 162–171. – EDN: FYGEQV.
  13. Chesunov, V. M., Vasenin, R. M. (1967) [Kinetics of solvent evaporation during film formation from polymer solutions]. Vysokomolekulyarnye soedineniya [High-molecular compounds]. Vol. 10, pp. 2067–2071.
  14. Anupam, Dewan, Rabijit Dutta and Balaji Srinivasan (2012) Recent Trends in Computation of Turbulent Jet Impingement Heat Transfer. Heat Transfer Engineering. Vol. 33, No. 4–5, pp. 447–460. – http://dx.doi.org/10.1080/01457632.2012.614154. (In Eng.).
  15. Der-Jen, Hsu, et al. (2018) Water-Based Automobile Paints Potentially Reduce the Exposure of Refinish Painters to Toxic Metals. International Journal of Environmental Research and Public Health, Vol. 15, No. 5, pp. 899. – https://doi.org/10.3390/ijerph15050899. (In Eng.).
  16. Mohamed, H. A. (2010) New waterborne paints with different binders and corrosion inhibition application. Journal of Coatings Technology and Research, Vol. 7, pp. 85–89. (In Eng.).
  17. Parashar, G., Bajpayee, M. & Kamani, P. K. (2003) Water-borne non-toxic high-performance inorganic silicate coatings. Surface Coatings International Part B: coatings Transactions, Vol. 86(3), pp. 209–216. (In Eng.).
  18. Xuehua, Liu, Wei, Hong, Xudong, Chen (2020) Continuous Production of Water-Borne Polyurethanes: A Review. Polymers, Volume 12, Issue 12, pp. 2875. – https://doi.org/10.3390/polym12122875. (In Eng.).
Error